package j.quartz.core.common.utils;

import java.util.regex.Matcher;
import java.util.regex.Pattern;

public class UnicodeUtil {
	
	//中文转Unicode  
    public static String gbEncoding(final String gbString) {   //gbString = "测试"  
        char[] utfBytes = gbString.toCharArray();   //utfBytes = [测, 试]  
        String unicodeBytes = "";     
        for (int byteIndex = 0; byteIndex < utfBytes.length; byteIndex++) {     
            String hexB = Integer.toHexString(utfBytes[byteIndex]);   //转换为16进制整型字符串  
              if (hexB.length() <= 2) {     
                  hexB = "00" + hexB;     
             }     
             unicodeBytes = unicodeBytes + "\\u" + hexB;     
        }     
        System.out.println("unicodeBytes is: " + unicodeBytes);     
        return unicodeBytes;     
    }  
    
    
	//Unicode转中文  
    public static String decodeUnicode(String str) {     
    	Pattern pattern = Pattern.compile("(\\\\u(\\p{XDigit}{4}))");

        Matcher matcher = pattern.matcher(str);

        char ch;

        while (matcher.find()) {

            ch = (char) Integer.parseInt(matcher.group(2), 16);

            str = str.replace(matcher.group(1), ch+"" );

        }

        return str;
    }  
    
    public static void main(String[] args) {
		String str = decodeUnicode
("\\u56FE\\u6807\\u6587\\u4EF6\\u4F4D\\u7F6E");
		System.out.println(str);
	}

}
